I owe as much of my success to an uncompromising obstinacy as to any original ideas.

Past is dead Future is uncertain; Present is all you have, So eat, drink and live merry.

Life is a preparation for the future; and the best preparation for the future is to live as if there were none.

If I were not a Jew I would be a Quaker.

It may be possible to fight intolerance, stupidity, and fanaticism seperately, but when they come together there is no hope.

Science is a wonderful thing if one does not have to earn one's living at it. One should earn one's living by work of which one is sure one is capable. Only when we do not have to be accountable to anybody can we find joy in scientific endeavor.

The state exists for man, not man for the state. The same may be said of science. These are old phrases, coined by people who saw in human individuality the highest human value. I would hesitate to repeat them, were it not for the ever recurring danger that they may be forgotten, especially in these days of organization and stereotypes.